Development of glycerol-based metal-free carbon materials for environmental catalytic applications
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/106466 |
Resumo: | A thermally stable and non-porous carbon material (S-BET = 10 m(2) g(-1) and no micropores), with low ash content and basic character, was produced by partial carbonization of glycerol with sulphuric acid followed by calcination under inert atmosphere. Further thermal activation in air atmosphere at different temperatures (from 150 to 350 degrees C) leads to materials with less basic character and to a tremendous evolution of the porosity, mostly microporosity (S-BET = 598 m(2) g(-1) and V-Mic = 0.24 cm(3) g(-1)). Experiments show that metal-free carbon materials synthesized by this approach can be highly active catalysts for the catalytic wet peroxide oxidation (CWPO) process when the surface chemistry and textural properties are adequately tuned. Effective catalytic degradation of 2-nitrophenol (80% conversion) was achieved with the material treated under air atmosphere at 300 degrees C, even when operating under a high pollutant/catalyst mass ratio, opening a window of opportunity for added-value crude glycerol-derived products. Furthermore, catalyst activity was effectively recovered by a simple oxidative thermal regeneration procedure. |
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7160 |
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Development of glycerol-based metal-free carbon materials for environmental catalytic applicationsA thermally stable and non-porous carbon material (S-BET = 10 m(2) g(-1) and no micropores), with low ash content and basic character, was produced by partial carbonization of glycerol with sulphuric acid followed by calcination under inert atmosphere. Further thermal activation in air atmosphere at different temperatures (from 150 to 350 degrees C) leads to materials with less basic character and to a tremendous evolution of the porosity, mostly microporosity (S-BET = 598 m(2) g(-1) and V-Mic = 0.24 cm(3) g(-1)). Experiments show that metal-free carbon materials synthesized by this approach can be highly active catalysts for the catalytic wet peroxide oxidation (CWPO) process when the surface chemistry and textural properties are adequately tuned. Effective catalytic degradation of 2-nitrophenol (80% conversion) was achieved with the material treated under air atmosphere at 300 degrees C, even when operating under a high pollutant/catalyst mass ratio, opening a window of opportunity for added-value crude glycerol-derived products. Furthermore, catalyst activity was effectively recovered by a simple oxidative thermal regeneration procedure.20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/106466eng0920-586110.1016/j.cattod.2014.03.048Rui S. RibeiroAdrián M. T. SilvaMaria T. PinhoJosé L. FigueiredoJoaquim L. FariaHelder T. Gomesinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T14:24:29Zoai:repositorio-aberto.up.pt:10216/106466Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:00:36.668797Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Development of glycerol-based metal-free carbon materials for environmental catalytic applications |
title |
Development of glycerol-based metal-free carbon materials for environmental catalytic applications |
spellingShingle |
Development of glycerol-based metal-free carbon materials for environmental catalytic applications Rui S. Ribeiro |
title_short |
Development of glycerol-based metal-free carbon materials for environmental catalytic applications |
title_full |
Development of glycerol-based metal-free carbon materials for environmental catalytic applications |
title_fullStr |
Development of glycerol-based metal-free carbon materials for environmental catalytic applications |
title_full_unstemmed |
Development of glycerol-based metal-free carbon materials for environmental catalytic applications |
title_sort |
Development of glycerol-based metal-free carbon materials for environmental catalytic applications |
author |
Rui S. Ribeiro |
author_facet |
Rui S. Ribeiro Adrián M. T. Silva Maria T. Pinho José L. Figueiredo Joaquim L. Faria Helder T. Gomes |
author_role |
author |
author2 |
Adrián M. T. Silva Maria T. Pinho José L. Figueiredo Joaquim L. Faria Helder T. Gomes |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Rui S. Ribeiro Adrián M. T. Silva Maria T. Pinho José L. Figueiredo Joaquim L. Faria Helder T. Gomes |
description |
A thermally stable and non-porous carbon material (S-BET = 10 m(2) g(-1) and no micropores), with low ash content and basic character, was produced by partial carbonization of glycerol with sulphuric acid followed by calcination under inert atmosphere. Further thermal activation in air atmosphere at different temperatures (from 150 to 350 degrees C) leads to materials with less basic character and to a tremendous evolution of the porosity, mostly microporosity (S-BET = 598 m(2) g(-1) and V-Mic = 0.24 cm(3) g(-1)). Experiments show that metal-free carbon materials synthesized by this approach can be highly active catalysts for the catalytic wet peroxide oxidation (CWPO) process when the surface chemistry and textural properties are adequately tuned. Effective catalytic degradation of 2-nitrophenol (80% conversion) was achieved with the material treated under air atmosphere at 300 degrees C, even when operating under a high pollutant/catalyst mass ratio, opening a window of opportunity for added-value crude glycerol-derived products. Furthermore, catalyst activity was effectively recovered by a simple oxidative thermal regeneration procedure. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/10216/106466 |
url |
https://hdl.handle.net/10216/106466 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0920-5861 10.1016/j.cattod.2014.03.048 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799135929872416768 |